Technical analysis of the entire process of precision mold manufacturing - a record of visits and exchanges between teachers and students from Jinan University
In today's era of deep integration of technology and intelligent manufacturing, our company and teachers and students from Jinan University have walked into the front line of enterprise production, witnessing the entire process of precision molds from design to molding. The following are the core process steps and technological breakthroughs highlighted by the technical team,.
1、 Mold structure design: four side row ejection technology of fine nozzle
For the demolding requirements of complex structural plastic parts, our company adopts a four sided fine water nozzle demolding scheme, which achieves multi-directional lateral core pulling through a precision guiding mechanism. The technical features include: high-precision tolerance control, strict control of full-size error within ± 0.01mm, ensuring consistency between the appearance and function of plastic parts;
Modular assembly design: The row component adopts standardized interfaces, supports quick mold replacement and maintenance, and improves production efficiency by more than 30%.
2、 Copper worker discharge machining: micrometer level cavity accuracy guarantee
In the process of copper (electrode) machining, efficient forming of complex surfaces and micro holes is achieved through multi axis linkage CNC electrical discharge machining (EDM). Verticality control technology is used, and a coordinate measuring machine (CMM) is used to conduct full dimensional inspection of the reference surface with a verticality error of ≤ 0.005mm, avoiding cavity collapse caused by deformation and smooth transition of the surface. Through layered discharge and secondary finishing processes, the problem of blurred edges and lines is eliminated, and the surface smoothness of plastic parts is improved.
3、 High precision equipment empowerment: Makino V33i processing system
The application of the core equipment Makino V33i high-speed machining center marks the entry of mold manufacturing into the era of micrometer level precision machining:
Breakthrough in ultra-thin wall processing: 0.5mm diameter cutting tools can achieve ± 0.002mm coaxiality, and 0.1mm thin-walled feature processing without deformation;
Intelligent margin control: With a minimum machining margin of 0.03mm technology, it reduces material waste and improves material utilization to 98%;
Dynamic stability optimization: Adopting a constant temperature workshop and an active vibration reduction system to ensure stable output of ± 0.003mm machining accuracy 24/7.
1. Composite processing technology chain
Rough machining → semi precision machining → high-speed milling → electrical discharge finishing → polishing five step method, balancing efficiency and accuracy;
2. Intelligent detection and closed-loop control
Introducing an online measurement system that provides real-time feedback on dimensional data during the machining process, automatically compensates for tool wear, and integrates three-dimensional measurement data with CAM software to generate machining error heat maps and guide process optimization.
Through this technical exchange, teachers and students have intuitively felt the technological charm of "millimeter level design, micrometer level processing, and nanometer level protection" in the field of precision manufacturing. In the future, our company will continue to deepen school enterprise cooperation and promote the advancement of the mold industry towards intelligence, greenness, and efficiency!
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